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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Toxicological information

Endpoint summary

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Administrative data

Key value for chemical safety assessment

Genetic toxicity in vitro

Link to relevant study records
Reference
Endpoint:
in vitro cytogenicity / chromosome aberration study in mammalian cells
Type of information:
(Q)SAR
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
results derived from a valid (Q)SAR model, but not (completely) falling into its applicability domain, with adequate and reliable documentation / justification
Justification for type of information:
QSAR
Principles of method if other than guideline:
QSAR
GLP compliance:
no
Key result
Species / strain:
not specified
Remarks:
QSAR
Metabolic activation:
not specified
Genotoxicity:
positive
Remarks:
QSAR
Cytotoxicity / choice of top concentrations:
not specified
Remarks:
QSAR
Vehicle controls validity:
not specified
Remarks:
QSAr
Untreated negative controls validity:
not specified
True negative controls validity:
not specified
Positive controls validity:
not specified
Additional information on results:
QSAR
Conclusions:
Computational tool: Leadscope
Genotoxicity potential as chromosome aberration in vitro for the target 2,4,8,10-Tetraoxa-3,9-
dithiaspiro[5.5]undecane, 3,3,9,9-tetraoxide was estimated by (Q)SAR methodology employing a battery of
models, including ACD/Percepta, ChemTunes/ToxGPS and Leadscope. Following a detailed assessment of
the generated (Q)SAR predictions, the most reliable prediction was provided by Leadscope.
Leadscope model for in vitro chromosome aberration test using Chinese hamster lung cells (Genotox
Suite/Clastogenicity in vitro/Chromosome aberration CHL) estimates the probability that a compound will
result positive in the experimental assay. Leadscope results include a genotoxicity prediction (positive,
negative or not in domain), a positive prediction probability and two parameters which assess model
applicability domain, i.e. Model Features Count and 30% Similarity Training Neighbours Count. Leadscope
prediction for the target 2,4,8,10-Tetraoxa-3,9-dithiaspiro[5.5]undecane, 3,3,9,9-tetraoxide is positive.
Executive summary:

Genotoxicity - chromosome aberrationin vitro(CHL) prediction is positive.

It is classifed as Mutagen 1. H340


Endpoint conclusion
Endpoint conclusion:
adverse effect observed (positive)

Genetic toxicity in vivo

Link to relevant study records
Reference
Endpoint:
in vivo mammalian somatic cell study: cytogenicity / erythrocyte micronucleus
Type of information:
(Q)SAR
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
results derived from a valid (Q)SAR model, but not (completely) falling into its applicability domain, with adequate and reliable documentation / justification
Principles of method if other than guideline:
QSAR
GLP compliance:
no
Key result
Sex:
not specified
Genotoxicity:
positive
Toxicity:
not specified
Vehicle controls validity:
not specified
Negative controls validity:
not specified
Positive controls validity:
not specified
Remarks on result:
other: QSAR
Conclusions:
Computational tool: ACD/Percepta
Genotoxicity potential as micronucleus in vivo on rodent for the target 2,4,8,10-Tetraoxa-3,9-
dithiaspiro[5.5]undecane, 3,3,9,9-tetraoxide was estimated by (Q)SAR methodology employing a battery of
models, including ACD/Percepta, ChemTunes/ToxGPS and Leadscope. Following a detailed assessment of
the generated (Q)SAR predictions, the most reliable prediction was provided by ACD/Percepta.
ACD/Percepta model for micronucleus in vivo composite (rodent) estimates probability (“p-value”) that a
compound will result positive in the micronucleus test on rodents. The reliability of prediction is assessed in
terms of reliability index (RI), which ranges from 0 to 1 and takes into account the similarity of the target
with the training set compounds and the consistency of experimental values for similar compounds. A
“positive” or “negative” call is provided if the compound can be reliably classified on the basis of p and RI
values (“Undefined” otherwise). ACD/Percepta genotoxicity prediction as micronucleus in vivo (composite)
for the target compound 2,4,8,10-Tetraoxa-3,9-dithiaspiro[5.5]undecane, 3,3,9,9-tetraoxide is positive.
Executive summary:

Genotoxicity - micronucleusin vivoprediction is positive.


It is classifed as Mutagen 1. H340

Endpoint conclusion
Endpoint conclusion:
adverse effect observed (positive)

Additional information

Justification for classification or non-classification

H340 mutagen